(Fred
Nickols (2015.11.09.1052)]
···
I
am watching/monitoring the traffic but that’s not the
variable I’m controlling. I am controlling for it being
safe to cross the street. When the traffic poses no risk
I’ll cross. I guess I am controlling for not being struck
by a car. So how would you describe the controlled
variable? Is it perceived safety? Is it perceived risk?
What I’m waiting to do is cross the street. Doing so
changes my physical location. Am I controlling for
location? I will cross when I decide it’s safe to do so.
Maybe I am controlling my decision to cross.